Transformer tank



April 29, 1924. y 1,492,163

G. M. EATON TRANSFORMER TANK Filed Jan. 14, 1921 WITNESSES: I v 3 INVENTOR firm r #M Q George M 5070/7 I of to Patented Apr. 29, 1924.

v UNITED sTArEs PATENT OFFICE.

GEOR E 111:. EATON, or PITTSBURGH, PENN YLVANIA, Assre on To WESTINGHOUSE ELECTRIC a MANUFACTURING cOmrANY, A CORPORATION or PE SYLVANIA.

TnANsronmEn TANK.

Application m Ianuary 14,1921. Serial No. 437,161.

To all whom it may concern:

Be it known that I, GEORGE M. EATON, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a newand useful Improvement in Transformer Tanks, of which the following is a specification.

My invention relates to heat-dissipating devices and it has particular relation to devices of the above indicated character wherein electrical or other a paratus is immersed within a cooling fluid More specifically, my invention relates to transformer tanks, thesides of which are provided with air-cooled corrugations, or radiators. 1 a v 1 One of the objects of my inventionv is to rovide a device Of'th character described in which the walls of the tank comprise a plurality of separately formed corrugated -members secured together in substantially side-by-side relation and communicating with the interior ofv the tank at the upper and lower portions thereof. Another object of vide a device of the separate elements of which are constructed pressed sheet metal and of such form as e quickly and easily assembled and which reinforce and strengthen the entire structure. I

Another Object of my invention is to provide a heat-dissipating device in which the Walls of the individual radiator units are.

disposed at angles to each other, thusnot only strengthening the units but forming a weld or thin passage or duct within whlch the cooling medium may freely circulate.

Heretofore, in devices of this general character, it has been customary to construct a tank having radiator units which communicate with the tank for the entire lengths of the units. In such structures, it has been observed that there is a tendency for the oil or other cooling medium contained within the radiator to becomesub stantially static or to circulate very slowly therein, thus materially reducing the rate of heat dissipation.

' In accordance w1th my invention, I construct radiator units with a. plurality of separate and complementary elements so formed that, when assembled in sidefby-side relation, the outer edges and central pormy invention is to procharacter described, the

tions of the inner edges thereof abut to form a duct or passageway therebetween. The passages thus formed communicate with the tank at the upper and lower extremities thereof and constitute the separate and individual channels through which the Oil or other cooling medium may circulate.

' Referring tothe drawings, Figure 1 is a plan view, of a transformer tank constructed in accordance with my invention. Fig. 2 is a view, partly in elevation and partly in vertical longitudinal section, on line 11-11 of Fig. 1.

Fig. 3 is an edge view of one of the complementary members of a radiatin unit, as viewed in the direction indicated by the arrows III in Fig. 1 and in which one of the side walls of the member is of substantially dish-shape and the other wall relatively fiat.

Fig. 4 is a side 'elevational view of the member illustrated'in Fig. 3 taken in the direction indicated by line IVIV in Fig. 1.

Fig. 5 is an edge view of a modified form of my invention in which each of the side walls of the U-shaped member is depressed; Fig. 6 is a side elevation of the structure shown in Fig. 5.

Referring to the drawings, a transformer tank, comprising a side wall 1 and atop and a bottom, 2' and 3, respectively, is provided with a plurality of radially extending radiator units 4; arranged with the inner extremities thereof in abutting relation to con- ,stitute the Wall 1 of the tank.

member 5 is formed with a depression 7 which extends practically the entire length of the same and with a flange 8 which extends around the outer edge thereof. The other wall 9 of the member 5 is substantially fiat and is adapted to engage the depressed portion of the adjacent member 5 to form a radiating unit.

The wall 6 is also provided,- along the inner edge thereof, with a raised portion 10 which is adapted to be engaged by the rela tively flat wall 9 to prevent communication between the radiator unit thus formed and the interior of the tank, except at the u per and lower portions thereof. The wa s 6 and 9 of each of the units 4 incline out- Fig. 1 and form a well defined passage for the cooling medium.

The members 5 may be formed with each side thereof provided with depressions 11, as indicated in Figs. 5 and 6. By means of this construction, the members 5 which constitute the sides of adjacent units, are disposed at angles to each other. That is to say, the side Walls of each of the units formed by the legs of the elements 5 diverge outwardly from each other.

It will be apparent that by means of the construction described above, a transformer tank may be constructed of a plurality of radiating units which communicate with the interior of the tank at the upper and lower extremities thereof, thus causing the circulation of a cooling medium within the respective units.

I claim as my inventionf 1. A heat-dissipating device comprising a tank and radiator units, the central portions of said units having substantially triangular crosssectional areas and the end portions thereof having srdistantially rectangular cross-sectional areas.

2. A heat-dissipating device comprising a receptacle adapted to contain a heating or cooling medium, and a plurality of radiator units communicating with said receptacle, the side walls of each unit being disposed at an angle to each other and co-operating with the walls of the adjacent units to form the wall of said tank.

3. A transformer tank rality of radiator units, ities thereof arranged to form the wallof said tank, said units being formed of a plurality of complementary members and the intermediate portions of said members being in contact with each other and the end comprising a pluthe inner extrcmportions thereof being spaced from each other to provide communication with said tank at the upper and lower portions thereof.

4. A transformer tank comprising a plurality of radiator units, said units being formed of a plurality of complementary members of substantially U-shape adapted to be arranged in substantially side-by-side relation, the central portions of the inner edges of said members being in en agement with each other to form the wal of said tank, said units being in communication with said tank at the upper and lower portions only thereof.

5. A transformer tank comprising a plurality of radiator units, said units being formed of a plurality of complementary members of substantially U-shape, one of the legs of said unit being depressed and the other leg thereof being substantially flat and adapted to be arranged in substantially side-loy-side relation, with the fiat portion of said member in engagement with the depressed portion of the next adjacent member, said depressed portion of said unit communicating with said tank at the upper and lower portions thereof.

6. A transformer tank comprising a plurality of radiator units, said units severally comprising a plurality of complementary elements, said elements constituting the sides of adjacent units and having raised portions adjacent the inner edges thereof to close said units with respect to said tank along the central portions thereof.

In testimony whereof, I have hereunto subscribed my name this 29th day of December, 1920.

GEORGE M. EATON. 

